Telephone apparatus



(No Model.) I 2- SheetsSheet 1. .0. L. WULLWEBEE.

TELEPHONE APPARATUS.

mmmm W fl l Mill Z'Sheets-Sheet 2. 0. L. WULLWEBER.

TELEPHONE APPARATUS.

No. 535,042. Patented Mar. 5, 189 5.

OTTO L. WULLVVEBER, OF CHICAGO, ILLINOIS.

TELEPHONE APPARATUS.

SPECIFICATION forming part of Letters Patent No. 535,042, dated March 5, 1895.

Application filed January 7,1893- Serial No. 45 7,582. (No model.)

To all whom it may concern.-

Be it known that I, OTTO L. WULLWEBER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Telephone Apparatus; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in telephone apparatus, intended to support and adjust the receiver and mouth-piece of the transmitter. It consists of a vertically and angularly adjustable frame for carrying the transmitter mouth-piece and the receiver, a tube for connecting the mouth-piece with the transmitter, of a memorandum holder and writing table, and of various other parts and combination of parts as hereinafter fully set forth. Its object is to bring the receiver and mouthpiece into such juxtaposition that when the user adjusts his ear to the one his lips will be brought in close proximity to the other so that his hands will be free; to provide for the vertical adjustment of the receiver and transmitter to accommodate persons'of various heights as well as to admit of the using in a standing or sitting position; to provide for the angular adjustment of the frame supporting the receiver and transmitter for convenience of use of the apparatus in any location with reference to surrounding objects; to provide for the reversal of the position of the receiver and transmitter for use of the former at either the right or left ear; to provide an adjustable memorandum rack which may be readily adapted to suit the range of vision of the user; and to provide a vertically adjustable and horizontally swinging table in convenient position for m aking notes while using the telephone.

In the accompanying drawings, Figure 1 is a side elevation of my improved apparatus. Fig. 2 is a transverse vertical section of the transmitter mouth-piece on the line 2, 2, of Fig. 1. Fig. 3 is a detail of the clamping device for locking the memorandum holder. Fig.

4 is a plan view of the apparatus. Fig. 5 is a vertical sectional view of the device for attaching the speaking tube to the telephone Fig. 7 is a transverse section on the line 7, 7,

of Fig. 4, of the receiver holder. Fig. 8 is a vertical transverse section on the line 8, 8, of Fig. 4, of the device for holding the frame at any desired elevation.

I show at A, an ordinary transmitter box,

and at G, the ordinary signal and receiver box. These parts form no portion of my invention, and as shown, are secured to a wall in the ordinary manner. My apparatus is designed to be secured to the wall adjacent to and upon either side of the ordinary telephone box. I show a wall-plate F, of wood. This may be made as ornamental as desired. I-Iorizontal posts D, E, are fixed in this wall-plate one above the other, and at as great distance 5 apart as it is desired to give vertical movement to the carrying frame. These posts are connected by parallel rods B, C, the latter being adjacent to the outer ends of'the posts,

and the former a short distance therefrom. 8c

The rod B, may be fixed permanently in the posts. The rod C, should be removably fitted Within apertures in the posts and held in po sition by set screws d, e.

The frame for carrying the transmitter mouth-piece and receiver consists of the ra diating arms I, J, firmly secured in a block II, which is vertically apertured so as to fit upon the rod C. The rod C, is provided with a series of scallops throughoutits length, and

within the aperture in the block H, is placed a vertical spring 1n, conforming in shape to the depressions of the scallops and bearing against the rod. The spring is secured at one end only. This construction secures suffi- 5 cient friction between the block H, and the rod C, to hold the frame at any desired eleva tion and yet admit of its movement by the application of slight pressure.

A metallic plate K, in the form of a scg- I00 ment of a circle and having a segmental slot is secured to and projects horizontally from the block H. The segmental slot is of such width and location that the rod B, passes through it. The spring clamp L, consisting of a strip of metal doubled upon itself and having an aperture throughwhich the rod B, passes, incloses between its two ends the segmental plate K, and is provided with a binding screw M, by means of which the two ends of the clamp are drawn firmly together and securely lock the plate K, thereby preventing the swinging of the carrying frame.

A chair 0, is secured upon the extreme end of the arm I, and is of such shape that a telephone receiver g, of ordinary form, is adapted to rest within itin a horizontal position. The chair 0, has at each of its ends a pair of upwardly projecting arms 0, one upon each side. These arms are inclined toward each other, and being of spring metal serve as clamps to hold the receiver in position. The arms of the forward end of the chair are inclined forwardly so as to abut against the rearward side of the enlarged end of the receiver so as to prevent the latter from receding as the operators ear is pressed against it.

The chair 0, is secured to the arm I, by means of a binding screw S, which serves, when loosened, as a swivel joint, and when tightened locks the chair so as to prevent angular movement. Ishow at g, the wires running to the receiver.

The mouth-piece u, is cup-shaped and formed of metal, a short metallic tube u projecting from the bottom of the cup, and adjustably fitting within a metallic tube 10', which is provided with a longitudinal slot to accommodate a stop screw M, which engages in an aperture in the tube u so that the mouth-piece may be adjusted with reference to the sleeve M. This sleeve is fitted within the end of a flexible tube U, which leads to the mouth-piece of the telephone box A, and is held closely against the same by means of a spring clamp 7, fitting over the sides of the box. A short metallic tube V, of slightly greater external diameter than the internal diameter of thetube U,is forced into the end of the latter, an external sleeve or ring r, having previously been placed upon the flexible tube. The internal diameter of the ring 1;, is the same as the external diameter of the tube U, but flares at the end toward the end of the tube. The clamp 7, is provided with an aperture adapted to come opposite to the mouthpiece of the transmitter the diameter of which is slightly greater than the external diameter of the ring o. The end of the tube U, forces the end of the tube V, within the mouth-piece and into close proximity with the transmitter diaphragm. The end of the flexible tube U, is brought snugly against the edges of the aperture of the mouth-piece, so that any sound waves transmitted from the mouth-piece to, through the tube, are directed without any loss of force upon the transmitter diaphragm. A metallic collar XV, is fitted upon the outer end of the tube U, its lower side being fiat, and adapted to rest upon the extreme end of the arm J. A binding screw 20, extends upwardly through an aperture in the end of the arm J, so as to engage a screw-threaded socket in the collar W. WVhen screwed up tight, the binding screw to, locks the collar W, so as to prevent angular movement of the end of the tube. Vt hen slightly loosened, it serves as a pivot upon which the collar 7, may be turned for the purpose of adjusting the mouth-piece angularly. The arm I, is longer than the arm J, and extends relatively to a greater heightthe difference in elevation being substantially the difference between the elevation of the mouth and the ear of the average person.

A memorandum holder formed of wire is secured to the collar W, by means of set screws 10 20 set horizontally in opposite sides of the ring and serving as trunnions about which the ends of the wire 1, 1, are bent. The wire 1,1, is doubled upon itself so that its two main portions are parallel and its transverse portion is looped at each end so as to inelose the wires 2, 2, whose ends are curved around the main portions of the wire 1,], so as to be longitudinally adjustable. A transverse wire frame 9, is securely held by the outer ends of the wires 2, 2, which are wound about it, and supports the swinging wire frame 8, secured to the frame 9, by having the ends of some of its wires wound around one of the strands of frame 9. The ends 4, 4, of the wires 2, 2, and ends 3, 3, of two wires forming the support of the frame 8, are brought into such relative position as to limit the backward movement of the frame 8, but permit it to be folded down upon the wires 2, 2. A brace 5, consisting of a strip of metal has one of its ends looped over the transverse portion of the wire 1, 1, and extends downwardly and forwardly in a curved line so that its opposite end is located below the end of the arm J. The lower end of the brace 5, is longitudinally slotted and a downwardly projecting stem of the binding screw w, projects through this slot. This downwardly projecting stem is screw threaded and a binding screw 5, is fitted to it so as to clamp the brace 5, by which means the wire memorandum holder 8, is securely supported. I have found it advisable to place upon the stem of the screw 20, a pair of washers w, tu of peculiar form above and below the brace 5. The adjacent faces of these washers have V- shaped projections between which the brace 5, is clamped. The washer 20 has a pair of vertical grooves, and the washer to, a pair of downwardly projecting legs which are adapted to be inserted through the slot in the brace 5, and slide within the grooves of the washer 1.0 By loosening the screw z, the memorandum frame may be vertically swung upon the shanks of the screws 20 4.0 the brace 5, sliding between the points of the washers w, 10 The slot in the brace 5, may be of sufficient length to allow of considerable range of adjustment of the memorandum holder. An aperture 6 is formed near the upper end of the brace 5, through which the tube U, is inserted.

A writing table 7", is supported by an arm R, which is apertured to slide upon the rod 0. The length of the aperture and arm R, is such that the weight of the table 0", causes it to bind upon the rod (Land hold it at any desired elevation. This table is adjusted by elevating its outer end sufficiently to bring the aperture of the arm exactly parallel with the rod and thus relieve the friction.

If desired, a set screw it, may be placed in the block H, to bear against the rod 0, for the purpose of locking the carrying frame at any desired elevation.

It is not necessary that the angular adjustment of the carrying frame of the apparatus should he often changed. Preferably it is adjusted in this particular to the satisfaction of the user and the screws settightly to hold it in the desired position.

It will be seen that the apparatus may be adjusted for the use of the receiver at the right ear by removing the block H, from the rod 0, the plate K, having been first detached from it, when the position of the arms I, J, may be reversed.

If desired a third vertical rod may be located as indicated'at B, to strengthen the device. The wires C, may pass behind it and thus be kept from swinging forwardly.

I claim as my invention 1. In atelephone apparatus the combination with a fixed frame having vertical rods B, C, of an apertured block H, adapted to slide upon and rotate with the rod 0, radiating arms fixed to the block and adapted to carry respectively the receiver and the transmitter mouthpiece, a segmental plate'K, fixed to the block and lying in horizontal plane,a spring clamp adapted to slide upon the rod B, and

engage the plate K, and means for tighte11- ing the clamp whereby the rotation of the block H, is stopped, substantially as described and for the purpose set forth.

2. In atelephoneapparatus the combination with a fixed frame having a vertical rod 0, of an apertured block H, mounted upon said rod and having a verticaland an axial movement, radiating arms fixed to the block H, for sup porting the receiver and the transmitter mouth-piece, and clamps for stopping each of the movements of the block, substantially as described and for the purpose set forth.

3. Inatelephoneapparatusthecombination with a fixed frame having an arm for supporting the transmitter mouth-piece, of a ring fixed upon said arm for holding the mouthpiece, side projections on said ring, a folding extensible note holder pivotally secured to such projections, substantially as described and for the purpose set forth.

4. In a telephone apparatus the combination with a fixed frame having an arm J, for supporting the transmitter mouth-piece, of a note or memorandum holder pivotally attached to the arm, a longitudinally slotted brace for supporting the note holder and a binding screw passing through the brace slot and engaging the arm J, for clamping the brace, whereby the elevation of the note holder may be adjusted, substantially as described.

5. In atelephone apparatus the combination with a bracket for supporting the transmitter mouthpiece of an extensible note or memorandum holder supported by the bracket and having a rack for holding memoranda, and a supporting arm composed of two members jointed together and secured, the one to the rack and the other to the bracket and adapted to slide one upon the other, substantially as described and for the purpose set forth.

6. In a telephone apparatus the combination with a fixed frame, of a vertical rod 0, having a series of uniform transverse indentations upon its surface and being carried by the frame so as to be capable of a rotary motion, set screws in the bearing block for the rod whereby it may be locked, an apertured block H, adapted to slide upon the rod, a friction spring m, carried by the block for engaging the indentations of the rod and arms radiating from the block and adapted to support the transmitter mouth-piece and the receiver, substantially as described and for the purpose set forth.

7. In a telephone apparatus the combination with the transmitter and with a flexible speaking tube leading thereto of a clamp for embracing the transmitter box and for supporting the tube, a flaring and closely fitting metallic ring encircling the tube and abutting against the inner surface of the clamp, and a metallic tube of slightly greater diameter than the flexible tube orifice forced into the latter and projecting slightly beyond its end, whereby the metallic tube is adapted to enter the central aperture of the transmitter mouthpiece and the end of the flexibletube to abut against its wall, substantially as described.

8. The combination with a slotted arm, plate or brace of a'clamping device comprising a binding screw, a pair of clamping washersmounted upon the stem of the screw and having their adjacent faces \l-shaped, one of said washershavinglegs adaptedto projectthrough the plate-slot and fit within grooves in the other washer, whereby the angular position of the plate may be varied with reference to the stem of the clamping screw, and the rotation of the clamping washers be prevented, substantially as described and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

OTTO L. \I ULLWVEBER.

Witnesses:

M. H. L. WING, L. K. GILLsoN.

IIC 

